/*
 * Copyright (c) 2013, Peter Thorson. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the WebSocket++ Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef WEBSOCKETPP_COMMON_CONNECTION_HDL_HPP
#define WEBSOCKETPP_COMMON_CONNECTION_HDL_HPP

#include <websocketpp/common/memory.hpp>

namespace websocketpp {

/// A handle to uniquely identify a connection.
/**
 * This type uniquely identifies a connection. It is implimented as a weak
 * pointer to the connection in question. This provides uniqueness across
 * multiple endpoints and ensures that IDs never conflict or run out.
 *
 * It is safe to make copies of this handle, store those copies in containers,
 * and use them from other threads.
 *
 * This handle can be upgraded to a full shared_ptr using
 * `endpoint::get_con_from_hdl()` from within a handler fired by the connection
 * that owns the handler.
 */
typedef lib::weak_ptr<void> connection_hdl;

} // namespace websocketpp

#endif // WEBSOCKETPP_COMMON_CONNECTION_HDL_HPP
